Grade 2 Science (NSO) : Air and water

Before starting lets take a look at the Grade 1 lessons

Air and Water : Properties

Air and Water : Use

Activities: Worksheets on Air and Water

Air

Living things need air to breathe

Moving air is called Wind

A gentle wind is called Breeze

A strong fast wind is called a Storm

A very strong wind is called Gale

Uses of moving air

A weather cock or wind vane is used to know the direction of the wind. At airports we use wind sock to know the direction of the wind. When aeroplanes fly in the direction of the wind , it saves fuel.

Wind makes windmill work. They are used to generate wind energy which is used to grind grains, pump water and make electricity.

Helps in sailing boats

A parachute falls slowly because of the wind

Continue reading